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System reliability analysis of concrete arch dams considering foundation rock wedges movement : a discussion on the limit equilibrium method
ID
Soltani, Narjes
(
Author
),
ID
Escuder-Bueno, Ignacio
(
Author
),
ID
Klun, Mateja
(
Author
)
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https://www.mdpi.com/2412-3811/9/10/176
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Abstract
In this paper, a discussion on the applicability and limitations of the limit equilibrium method is presented. In this manner, the reliability of a concrete arch dam-foundation system under static loading is evaluated by considering a set of potentially moveable rock wedges in the foundation. The safety of the system is assessed utilizing a quasi-analytical method, which employs the limit equilibrium method and numerical analysis to calculate the sliding safety factors and the dam trust forces, respectively. The reliability is evaluated using the Latin Hypercube Sampling method. Random variables in the system are the friction angle, cohesion, and the Grout Curtain Efficiency Coefficient. In the end, the influence of two parametric variables of discontinuities, elastic slip and rock mass deformability modulus, on the rock wedges’ sliding safety factor is evaluated by comparing the results of the quasi-analytical method with the purely numerical method. The results show that in the case of complicated geotechnical conditions, the limit equilibrium method may not reflect real-world failure scenarios.
Language:
English
Keywords:
double-curvature concrete arch dams
,
reliability analysis
,
foundation stability
,
limit equilibrium method
,
numerical models
,
Latin Hypercube Sampling
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FGG - Faculty of Civil and Geodetic Engineering
Publication status:
Published
Publication version:
Version of Record
Year:
2024
Number of pages:
17 str.
Numbering:
Vol. 9, iss. 10, art. 176
PID:
20.500.12556/RUL-163631
UDC:
519.62
ISSN on article:
2412-3811
DOI:
10.3390/infrastructures9100176
COBISS.SI-ID:
210858499
Publication date in RUL:
09.10.2024
Views:
121
Downloads:
19
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Record is a part of a journal
Title:
Infrastructures
Shortened title:
Infrastructures
Publisher:
MDPI AG
ISSN:
2412-3811
COBISS.SI-ID:
526777369
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Secondary language
Language:
Slovenian
Keywords:
ločna pregrada
,
betonska pregrada
,
zanesljivostna analiza
,
stabilnost temeljnih tal
,
mejna stanja
,
numerična analiza
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